Knudsen cell and smog chamber study of the heterogeneous uptake of   sulfur dioxide on Chinese mineral dust

doi:10.1016/j.jes.2014.04.005

CORC > 北京大学 > 化学与分子工程学院

	Knudsen cell and smog chamber study of the heterogeneous uptake of sulfur dioxide on Chinese mineral dust
	Zhou, Li ; Wang, Weigang ; Gai, Yanbo ; Ge, Maofa
刊名	journal of environmental sciences china
	2014
关键词	Mineral dust Sulfur dioxide Uptake coefficient Temperature dependence CALCIUM-CARBONATE NITRIC-ACID PARTICLE SURFACES HYDROGEN-PEROXIDE TEMPERATURE-DEPENDENCE ATMOSPHERIC REACTIONS MAGNESIUM-OXIDE ADSORBED WATER DRY DEPOSITION SAHARAN DUST
DOI	10.1016/j.jes.2014.04.005
英文摘要	The heterogeneous uptake processes of sulfur dioxide on two types of Chinese mineral dust (Inner Mongolia desert dust and Xinjiang sierozem) were investigated using both Knudsen cell and smog chamber system. The temperature-dependence of the uptake coefficients was studied over a range from 253 to 313 K using the Knudsen cell reactor, the initial uptake coefficients decreased with the increasing of temperature for these two mineral dust samples, whereas the steady state uptake coefficients of the Xinjiang sierozem increased with the temperature increasing, and these temperature dependence functions were obtained for the first time. In the smog chamber experiments at room temperature, the steady state uptake coefficients of SO2 decreased evidently with the increasing of sulfur dioxide initial concentration from 1.72 x 10(12) to 6.15 x 10(12) mol/cm(3). Humid air had effect on the steady state uptake coefficients of SO2 onto Inner Mongolia desert dust. Consequences about the understanding of the uptake processes onto mineral dust samples and the environmental implication were also discussed. (c) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000347664100007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; SCI(E); PubMed; 中国科技核心期刊(ISTIC); 3; ARTICLE; zhouli@iccas.ac.cn; wangwg@iccas.ac.cn; gemaofa@iccas.ac.cn; 12; 2423-2433; 26
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/188723]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhou, Li,Wang, Weigang,Gai, Yanbo,et al. Knudsen cell and smog chamber study of the heterogeneous uptake of sulfur dioxide on Chinese mineral dust[J]. journal of environmental sciences china,2014.
APA	Zhou, Li,Wang, Weigang,Gai, Yanbo,&Ge, Maofa.(2014).Knudsen cell and smog chamber study of the heterogeneous uptake of sulfur dioxide on Chinese mineral dust.journal of environmental sciences china.
MLA	Zhou, Li,et al."Knudsen cell and smog chamber study of the heterogeneous uptake of sulfur dioxide on Chinese mineral dust".journal of environmental sciences china (2014).